BioUltra, ≥99.5% (sum of enantiomers, HPLC)

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

product line


Quality Level


≥99.5% (sum of enantiomers, HPLC)

optical activity

[α]20/D +104.0±2.0°, 24 hr, c = 10% in H2O


insoluble matter, passes filter test

ign. residue



≤0.1% loss on drying


4-7 (25 °C, 1 M in H2O)


155-158 °C
160-163 °C (lit.)


H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤200 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg


1 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.05
λ: 280 nm Amax: ≤0.04

SMILES string




InChI key


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L-Arabinose is used as a substrate to identify, differentiate and characterize pentose sugar isomerase(s). L-Arabinose is used in the bioproduction of L-ribose.

Biochem/physiol Actions

L-Arabinose is the naturally occurring isomer and is a constituent of plant polysaccharides. Most bacteria contain an inducible arabinose operon that codes for a series of enzymes and transporters that allows L-arabinose to be used as the sole carbon source in microbial culture.


13 - Non Combustible Solids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

M Helanto et al.
Applied microbiology and biotechnology, 83(1), 77-83 (2009-01-20)
L-Ribose is a rare and expensive sugar that can be used as a precursor for the production of L-nucleoside analogues, which are used as antiviral drugs. In this work, we describe a novel way of producing L-ribose from the readily...
Young-Ho Hong et al.
Journal of agricultural and food chemistry, 59(24), 12939-12947 (2011-11-23)
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Chang-Su Park et al.
Applied microbiology and biotechnology, 92(6), 1187-1196 (2011-06-22)
A putative N-acyl-D-glucosamine 2-epimerase from Caldicellulosiruptor saccharolyticus was cloned and expressed in Escherichia coli. The recombinant enzyme was identified as a cellobiose 2-epimerase by the analysis of the activity for substrates, acid-hydrolyzed products, and amino acid sequence. The cellobiose 2-epimerase...
Koen J T Venken et al.
Nucleic acids research, 36(18), e114-e114 (2008-08-05)
Studying gene function in the post-genome era requires methods to localize and inactivate proteins in a standardized fashion in model organisms. While genome-wide gene disruption and over-expression efforts are well on their way to vastly expand the repertoire of Drosophila...
Tobias Bergmiller et al.
BMC microbiology, 11, 118-118 (2011-05-31)
The essential Escherichia coli gene ygjD belongs to a universally conserved group of genes whose function has been the focus of a number of recent studies. Here, we put ygjD under control of an inducible promoter, and used time-lapse microscopy...

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